I got together with a train friend yesterday, who is very knowledgeable about Postwar Lionel trains. He has a substsntial collection of them and does excellent Postwar train repair work, including working on Saturday afternoons at a LHS.
He told me you can use a few drops of either Lionel Premium Smoke Fluid or MTH Smoke Fluid, instead of smoke pellets, in Postwar steamers, without converting the smoke units to run on fluid, and still get good results. My friend said he knows dealers at train shows that do it all the time.
Do you agree with my friend?
Are there any negative consequences for using a few drops of the fluid in Postwar steamers without doing the conversion?